Answer:
Demonstration Effect
Explanation:
Demonstration Effect is the effect on an individual's behaviour , due to his / her observation of other's behaviour.
Eg : A child seeing a family member abusing other family member perceives that this is the way to deal with people & might do it in his / her school as well.
Similarly, Kory witnessing other child acting aggressively to get his / her demand fulfilled makes Kory self rationalise her own act of doing so to get her things done. So, she might imitate the same aggression to get a toy from her elder sister due to Demonstration Effect .